18631142861023 has 16 divisors (see below), whose sum is σ = 23702487609600. Its totient is φ = 14517773655000.

The previous prime is 18631142860949. The next prime is 18631142861041. The reversal of 18631142861023 is 32016824113681.

It is not a de Polignac number, because 18631142861023 - 2¹³ = 18631142852831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18631142861063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2469005353 + ... + 2469012898.

It is an arithmetic number, because the mean of its divisors is an integer number (1481405475600).

Almost surely, 2^{18631142861023} is an apocalyptic number.

18631142861023 is a deficient number, since it is larger than the sum of its proper divisors (5071344748577).

18631142861023 is an equidigital number, since it uses as much as digits as its factorization.

18631142861023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4938018283 (or 4938018269 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 18631142861023 in words is "eighteen trillion, six hundred thirty-one billion, one hundred forty-two million, eight hundred sixty-one thousand, twenty-three".